Application of french binding



Oct. 29, 1935. P. 1.. ODONNELL APPLICATION OF-FRENCH BINDING Filed Feb.10, 1953 Patented Oct. 29, 1935 UNITED STATES APPLICATION OF FRENCHBINDING Philip L.- O'DonnelLCincinnati, Ohio, assignor to James B.ODonnell, Cincinnati, Ohio Application February 10, 1933, Serial No.656,129

' 3 Claims. (01. 12-146) This invention relates to the shoe working artand particularly to means and method for attaching the tape to the edgesof shoe uppers. However, the invention is likewise applicable to 5 usesother than shoe making in which the attachment of tape to material, orthe union of two materials, is the objective. ure is a furtherdevelopment of that set forth in my co-pending application Serial No.497,092. 'As

in inthe previous disclosure, the particular attachment of the tapecontemplated is known as French folding and the machine conventionallyillustrated in the accompanying'drawing is of the type which efiectssuch a fold.

15 An object of the invention is to provide improved means and methodfor effecting adhesion of adhesively coated tape to a shoe upper orother flexible material.

Another object is to provide means of this kind 2Q inwhich the use ofheat for effecting a proper.

adhesive state of the tape is obviated.

, Another object is to provide means for eliminating movable adhesiveapplicators now commonly in use in the shoe working and related2.2,.arts.

" Another object is to achieve these results with means simple inmanufacture and use and efiicient in operation.

These and other objects are obtained by the 30 means described hereinand illustrated in the accompanying drawing in which:

Fig. 1 is a side elevational view representing conventionally a Frenchfolding machine with the means of the present invention attachedthereto, parts being shown in cross section.

Fig. 2 is a view taken on line 2-2 of Fig. 1.

Fig. 3 is a view. taken on line 3-3 of Fig. 2, the bottom edge of apositioned shoe upper or the like being turned outwardly to disclose aFrench 4 fold.

Fig. 4 is a, fragmental detail view of partially coated tape which maybe utilized in the same way as the fully coated tape shown in Fig. 3.

The present invention is designed to overcome 45 the difficulty ofefiecting a permanent attachment of the tape to the edge of shoe uppers.The use of a brush or the like for dampening the adhesively coated sideof tape immediately before application thereof, has commonly been thepractice in 50 the past and found to be a slow and tedious method.Moreover, the dampening is not always efiected smoothly and evenly onthe coated surface so that certain portions did not adhere properly uponthe subsequent application of pressure.

55 Another method commonly followed heretofore The present disclos hasbeen the heating of the adhesive tape immediately before it ispositioned upon the leather. The ,maintenance of the proper degree ofheat for the purpose required was difiicult and involved expensive andcomplicated mechanism. The 5 present invention overcomes difiiculties ofthis kind by providing, means for spraying the coated side of the tape,and if desired the surface of the shoe upper adjacent thereto,immediately before folding and pressing down of the tape. This sprayingis accomplished by the use of a tank or the like containing the liquidto be sprayed, ordinarily water, said tank being provided with ,airpressure and aerating means for discharging the liquid through an outlettube onto the tape and 1 material at the time indicated.

With reference to the drawing: The French folding machine conventionallyillustrated comprises abody 5 supporting a pair of spaced lateral arms 6and l disposed one above the other in v parallelism. The operatingmechanism of the machine is indicated by the pulley 8 and belt 9. Thearm 6;is provided at its outer end with a shuttle which moves theleather acrosssaid arm in the manner of a sewing machine- The arm 1 5;

has attached thereto portions of the mechanism, conventionallyrepresented and comprising a supporting arm it] which has the knurledroller 22 upon its outermost end, said roller serving to retain the shoeupper in proper position in its movement across the shuttle.Intermediate the end of arm ill the guide finger l I is adjustablydisposed, said finger serving to properly retain the unfolded tape inposition for the subsequent folding operation. The arm 6 which is hollowhas the forked folding finger 23 associated therewith, said finger beingdisposed adjacent the finger II and being reciprocated by suitablemechanism transversely of the edge of the shoe upper for folding thetape. A hammer 24, the operation of which is subsequent to that of thefolding finger 23, is likewise associated with the arm 6. Hammer 24applies pressure to the folded tape for assuring its permanentattachment. Adjacent the body 5 of the machine an electric motor [2 andair compressor I3 is positioned. Upon the top of body 5 a supply tank orcontainer I4 is attached. The container I l and compressor I3 areconnected by a communicating pipe or conduit 15 by which air underpressure is supplied interiorly of container I4. Inside of the containera stub pipe l6 provides a continuation of the conduit l 5, and has atits free end an attachment I! by which air is emitted in two directionswithin the container as indicated by the small arrows in Fig. 1. At thebottom of the container adjacent the attachment I! a port H3 is providedfrom which exteriorly of the container a pipe l9 extends, said pipehaving a suitable supporting bracket as indicated at 20. Pipe I9 ispreferably semi-rigid so that its free end 2| may be disposed in adesired position relative to the work being operated on by the foldingmechanism.

It is to be understood that one edge of the tape 25 is stitched,previous to the operations herein contemplated, to the outer face of ashoe upper 26. These joined members are then positioned upon arm 6 Withthe stitched edge of the tape turned down and the main portion thereofextending beyond the edge of the shoe upper as seen in Figs. 2 and 3.The guide finger serves to raise the tape into an angular positionrelative to the shoe upper 26, (Fig. 3) and it isat this point, adjacentone edge of arm 6, that the end 2| of. pipe I9 is positioned forapplying the liquid to the tape and to the adjacent portion of the shoeupper. The end 2| is preferably flattened for effecting a greaterdispersion of the adhesive' liquid and likewise to assist in. thevaporous or semi-vaporous ejection thereof;

The pressure of air entering container I4 is directed upwardly throughthe liquid in opposite or divergent directions as indicated by thearrows (Fig. l). A pressure of air is thus built up, between the topsurface of the liquid and the top of the container, and at the same timea churning and constant movement of the liquid in the container iseffected whereby precipitation and adherence of the liquid to theinterior of the container, is precluded. The liquid, mixed with air,

is ejected through port 8 into pipe IS, in which a valve 21, forcontrolling the flow, is positioned.

suggested, the tape need not be fully coated as illustrated in Figs. 1,2 and 3. The tape 3| provided with a partial coating 32 is illustratedin Fig. 4. It is obvious that the uncoated edge of this kind of tape isinitially stitched to the leather 5 and that the coated portions arethen operated upon in the manner heretofore described. It is obviousthat other kinds of tape are equally adaptable for use in thepresent'invention such, for example, as tape having its longitudinaledge 10 or edges pinked. Modifications suggest themselves uponconsidering the means herein set forth but these are believed to becomprised in the spirit and scope of the present invention.

What is claimed is: 15

1. The method of joining adhesively coated tape to the edge portion of ashoe upper, comprising attaching an edge of the tape to an edge of theupper, turning the tape, coated side up, into angular relationship withthe upper substantially 20 less than degrees, spraying the coated sideof the tape and adjacent surface of. the upper with a liquid mist, andpressing said surfaces together to effect adhesion thereof.

2. The method of joining adhesively coated 25 tape to the edge portionof a shoe upper, comprising attaching an edge of the tape to an edge ofthe upper, turning thetape, coated side up, into angular relationshipwith the upper substantially less than 180 degrees, spraying the coated30 side of the tape with a liquid mist, and pressing said coated sideagainst the adjacent surface of the shoe upper.

3. The method of joining adhesively coated tape to the edge portion of ashoe upper, compris- 35 mg attaching an edge of the tape to an edge ofthe upper, disposing the coated side of the tape in such position as tobe folded over the edge of the upper and onto a surface thereof by aturn of substantially less than 180, spraying 4,0 with liquid the coatedside of the tape, and fold-' ing the sprayed side of the tape over theedge and against the adjacent face of the upper.

PHILIP ODONNELL.

